SimHub with Forza Horizon 5

Last updated 4 August 2026 · SimHub 9.11.22

Forza Horizon 5 broadcasts telemetry over UDP through its "data out" setting, which is off by default. Turn it on, point it at 127.0.0.1 if the game is on the same PC, and enable the game in SimHub. The complication is specific to the Microsoft Store version: Store games run inside an AppContainer sandbox that blocks loopback connections by default, which is exactly what SimHub needs. The Steam version does not have this problem, which makes it a useful diagnostic.

This page exists mostly for the AppContainer problem, which is notorious, poorly documented, and affects only some copies of the same game.

How it works

UDP broadcast. The game sends telemetry packets to an address and port set in its "data out" options, and SimHub listens.

Because it is UDP, it works from an Xbox as well as a PC — the packets travel over your network to a PC running SimHub. And because it is UDP, only one application can receive the stream at a time.

Setting it up

Turn on data out in the game
In Forza Horizon 5's settings, under HUD and Gameplay. The option is called Data Out and it is off by default.
Set the IP and port
127.0.0.1 if the game and SimHub are on the same PC. Your PC's IP address if you are playing on an Xbox. The port must match what SimHub expects.
Allow SimHub through the firewall
Both Private and Public profiles.
Enable Forza Horizon 5 in SimHub
Tick it in the game list.
If nothing arrives, suspect the Store version
See the section below. This is the step that takes most people's evening.

The Windows Store AppContainer problem

A Microsoft Store game cannot talk to another application on the same PC by default. Store apps run inside an AppContainer sandbox, and one of its default restrictions is a block on loopback connections — network traffic from an app to something else on the same machine. Since SimHub receives Forza's UDP on 127.0.0.1, that is precisely what is being blocked.

What makes it maddening is that everything looks correct. Data out is on, the IP is right, the firewall is open, and nothing arrives — because the block is at a layer below all of that.

How to confirm it is this:

The Steam version of the same game works. Steam builds are not in an AppContainer. If a friend's Steam copy works with an identical configuration, you have found it.
Sending to a different machine works. The AppContainer restriction is specifically on loopback — traffic to another PC on the network is not blocked. If pointing data out at a second PC works and 127.0.0.1 does not, that confirms it.

The fix is a loopback exemption for the game's AppContainer. It is a Windows-level setting rather than anything in SimHub or in Forza, and it is why this problem is discussed on forums far more than it is documented.

Other Forza gotchas: data out is off by default in every Forza title.
Forza Motorsport (2023) has exactly the same Store behaviour and the same fix.
On Xbox, the AppContainer problem does not arise at all, because the data is going to a different machine by definition. Console setup is simpler than PC setup here.

What works well here

Forza Horizon is an open-world driving game rather than a circuit sim, which changes what is worth setting up. Lap times and delta are largely irrelevant; speed, gear and a rev bar are the useful things.

The enormous car range makes percentage-based shift light configuration essential — the game spans everything from hatchbacks to hypercars, and no absolute RPM setting is right for more than a handful.

Road-surface haptics suit this game unusually well, because the game has genuine surface variety and you spend a lot of time off tarmac. It is one of the few titles where a road texture effect is doing something interesting most of the time.

Common questions

How do I enable telemetry in Forza Horizon 5?

Turn on Data Out in the game's settings, under HUD and Gameplay — it is off by default. Set the IP to 127.0.0.1 if the game is on the same PC as SimHub, or your PC's address if you are on Xbox, and set the port to match what SimHub expects.

Why doesn't Forza work with SimHub on PC?

Most likely the Microsoft Store version's AppContainer sandbox, which blocks loopback connections by default — exactly what SimHub needs to receive UDP from a game on the same machine. Everything looks correctly configured because the block is at a lower layer. A loopback exemption for the game's AppContainer is the fix.

Does the Steam version of Forza work better with SimHub?

For this specific problem, yes — Steam builds do not run in an AppContainer, so the loopback block does not apply. That also makes it a useful diagnostic: if a Steam copy works with an identical configuration and yours does not, the AppContainer is your cause.

Does SimHub work with Forza on Xbox?

Yes, and the PC-only AppContainer problem does not arise, because the data is going to a different machine by definition. Set data out to your PC's IP address and make sure the PC's network profile is Private.

Is Forza Motorsport (2023) set up the same way?

Yes — the same data out mechanism, and the same Microsoft Store AppContainer problem with the same fix.

What should I put on a dashboard for Forza Horizon?

Speed, gear and a rev bar. It is an open-world driving game rather than a circuit sim, so lap times and delta are largely irrelevant. Road-surface haptics are worth setting up here because the game has real surface variety.

Sources

SimHub is developed independently by Wotever and is not affiliated with oesimracing. This page was checked against SimHub 9.11.22 on 4 August 2026; where the interface has moved on since, the version stamp tells you how far. More on what SimHub is and what it costs.